Some of it sounds rather typical, but some of it is a conspiracy-theory-level of craziness.

They are making my home life miserable with constant yelling over the matter.

You seem very well-composed, which is wonderful. They are the ones not acting maturely. Maybe do not point it out to them - but be aware of this and don't let them rile you up. Answer their questions as politely and well-informedly as you have so far. They might try to get you into a crossfire-hearingummcross examinationumm situation where they both shoot questions at you aggressively, too...